1010212102121 has 12 divisors (see below), whose sum is σ = 1037799410244. Its totient is φ = 983256948000.

The previous prime is 1010212102063. The next prime is 1010212102139. The reversal of 1010212102121 is 1212012120101.

It can be written as a sum of positive squares in 2 ways, for example, as 897273090025 + 112939012096 = 947245^2 + 336064^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1010212102121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010212102096 and 1010212102105.

It is not an unprimeable number, because it can be changed into a prime (1010212102421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1085090 + ... + 1788251.

It is an arithmetic number, because the mean of its divisors is an integer number (86483284187).

Almost surely, 2^{1010212102121} is an apocalyptic number.

It is an amenable number.

1010212102121 is a deficient number, since it is larger than the sum of its proper divisors (27587308123).

1010212102121 is an equidigital number, since it uses as much as digits as its factorization.

1010212102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873560 (or 2873501 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1010212102121 its reverse (1212012120101), we get a palindrome (2222224222222).

The spelling of 1010212102121 in words is "one trillion, ten billion, two hundred twelve million, one hundred two thousand, one hundred twenty-one".